Connect public, paid and private patent data with Google Patents Public Datasets

Tube coupling

Download PDF

Info

Publication number
US6860523B2
Authority
US
Grant status
Grant
Patent type
Prior art keywords
ring
gripper
coupling
bushing
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US10266935
Other versions
US20030111840A1 (en )
Inventor
Jerry E. O'Neill
Charlie Whitney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Accor Tech Inc
Original Assignee
Accor Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52291Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52296Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52297Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52298Joining tubular articles involving the use of a socket said socket being composed by several elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/12Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/088Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Abstract

A fluid coupling having an outer housing with an internal bore, an O-ring fitted within the bore, a spacer bushing fitted against the O-ring, a gripper ring fitted against the axially outer side of the spacer ring, the gripper ring having axially and radially inwardly protruding circumferentially spaced gripping teeth, the teeth arranged for providing a twist when subjected to simultaneous rearward axial and rotational forces, and an end bushing holding the gripper ring, spacer bushing, and O-ring within the outer housing. A fluid coupling having an outer housing with an internal bore, an O-ring seal fitted within the bore, a spacer bushing fitted against the seal, a first gripper ring fitted against the axially outer side of the spacer ring, a second gripper ring fitted against the O-ring seal, the gripper rings having axially and radially inwardly protruding circumferentially spaced gripping teeth, in one embodiment the teeth arranged for providing a twist when subjected to simultaneous rearward axial and rotational forces, and an end bushing holding the gripper rings, spacer bushing, and O-ring within the outer housing.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 09/570,846, filed May 12, 2000 now U.S. Pat. No. 6,464,266 which is a continuation-in-part of U.S. patent application Ser. No. 09/216,376, filed Dec. 18, 1998 now abandoned; and Ser. No. 09/425,909, filed Oct. 21, 1999 now abandoned, and claims the benefit of and is a continuation of PCT/US99/30149, filed Dec. 17, 1999, all now pending, which applications are incorporated herein by reference in their entirety.

TECHNICAL FIELD

This invention pertains to removable couplings of the type for securing a plastic or copper tube by pressing on the tube without the need for welding or solder.

BACKGROUND OF THE INVENTION

U.S. Pat. No. 4,911,406 shows a tube coupling in which a metal or plastic tube can be coupled in a fluid-tight connection to a valve or the like simply by pressing the tube into the coupling. The tube is held into the coupling by a flexible gripper ring having teeth, which bite into the tube to prevent the tube from being pushed out by the fluid pressure in the coupling. The teeth are arranged such that the tube can be removed from the coupling by unscrewing the coupling but cannot be removed simply by axially pulling the tube without rotation of the tube. An O-ring seal is provided to prevent leakage of fluid outside of the coupling around the tube.

One of the advantages of the invention of the U.S. Pat. No. 4,911,406 is that by screwing the tube out of the gripper ring there is minimal damage to the surface of the tube. This then enables other advantageous arrangements of the seal and the gripper ring within the coupling.

With the introduction of softer plastic tubing, such as, polybutylene or PEX [cross-linked polyethylene, plastic] to the plumbing industry, the demands on the holding power of the gripper ring have increased. The softer tubing material can cause the teeth of the gripper ring to gouge grooves in the tubing when the tubing is subjected to high numbers of repeated cycles at higher hydrostatic pressures.

SUMMARY OF THE INVENTION

It is a first improvement of the invention to reverse the position of a gripper ring in the coupling from the position shown in the U.S. Pat. No. 4,911,406. In the embodiments of this invention, the seal, such as an O-ring seal, is arranged axially inward of the gripper ring in the outer housing of the coupling. This is followed by a spacer bushing which holds the ring in place and the gripper ring, with its teeth, is on the axially outer side of the spacer bushing. This enables the detection of a leak caused by inadequately inserting a tube into the O-ring seal. It is particularly advantageous also in the situation of re-piping or replacing a previous metal valve to enable the existing compression ring used with metal vales to fit into a valve using this gripper ring arrangement.

It is a second improvement of the invention of U.S. Pat. No. 4,911,406, to provide two or more gripper rings for increasing the holding power of the rings in the coupling for use with the softer tubing. The two or more gripper rings co-act on the tubing in a synergistic effect distributing the load between them to substantially increase the holding power of the rings in the softer tubing. It is believed that the softness of the tubing allows movement of the teeth in the plastic until the load on the teeth is distributed over the total number of teeth thus increasing the ultimate holding power of the rings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an axial section of the coupling embodying the principles of the invention.

FIG. 2 is an exploded view of the coupling shown in FIG. 1.

FIG. 3 is a fragmentary section of the gripper ring showing one of the gripper teeth.

FIG. 4 is a generic illustration of what could be a test cap or a valve or other coupling device product embodying the principles of the invention.

FIG. 5 shows the O-ring seal and gripper ring arrangement of this invention within the valve of the type shown in U.S. Pat. No. 4,911,406.

FIG. 6 is an axial section of the coupling embodying the principles of the invention with multiple gripper rings for use, for example, with a valve.

FIG. 7 is an exploded view of the coupling shown in FIG. 6.

FIG. 8 is a fragmentary section of the gripper ring showing one of the gripper teeth.

FIG. 9 is a generic illustration of uses for the coupling with what could be a valve, a shower head, a tub faucet coupling, a tube coupling, or any other application or use for this unique coupling.

FIG. 10 shows another embodiment of the invention with three gripper rings. This view is intended to show that the number of gripper rings can be any multiple of two or more.

FIG. 11 shows still another embodiment of the coupling used for a test cap. These various views are intended to show that the coupling has a wide variety of uses and configurations not all of which are shown for purposes of brevity.

FIG. 12 shows another embodiment of the coupling.

FIG. 13 shows another embodiment in which a valve using the push-on invention is used to replace a conventional metal valve with its normal compression ring.

DETAILED DESCRIPTION OF THE INVENTION

As best shown in FIG. 1, the unique coupling is shown in one form as a generic coupling but could be a test cap. A test cap, for example, is used in the plumbing industry for checking temporarily on the pressure of a plumbing system to see if all of the joints are free from leaks and that the proper pressure may be maintained. Usually then the test cap is removed and a permanent valve soldered or bonded onto the tube. The many applications for the coupling is further shown generically in phantom lines in FIG. 4, in which the phantom line box is a test cap coupling, a valve, an end unit like a shower-head, a coupling for joining two pieces of tubing together, etc. FIG. 5 shows more specifically the invention for the valve. The details of these different applications are obvious to one of ordinary skill in the art and the details of U.S. Pat. No. 4,911,406 are incorporated herein by reference thereto.

In all of the couplings of FIGS. 1-5, the invention includes an outer housing 10 having an inner bore 12 with a side wall 14. The inner bore has a seal support surface 16 against which is fitted a conventional O-ring seal 15. The seal is held in the bore by a spacer bushing 18. The spacer bushing has circumferentially spaced axial grooves 33, as best shown in FIG. 2. A metallic gripper ring 27 is provided with circumferentially spaced axially and radially inwardly protruding teeth 29. The spacer bushing has a flat 36 aligned with a flat 30 on the gripper ring 27. The inside wall of the housing has a protruding flat 31 to receive the flats on the bushing and gripper ring. The gripper ring is also provided with a notch 39 and the spacer bushing provided with a notch 41, which notches engage a protrusion 40 (FIG. 1) on the inside wall 14 of the outer housing 10. The flats on the inner bushing and the gripper ring and the notches are provided to assure proper installation of the gripper ring and inner bushing within the housing.

An end bushing 20 is positioned against the gripper ring and holds the O-ring, spacer bushing, and gripper ring tightly together so that the teeth of the gripper ring extend into the inner bore 12. The end bushing is held within the internal bore of the outer housing 10 by sonic welds 22. The end bushing is provided with guide ribs 28 for guiding a plastic or copper tube 26 into the coupling. The tube end inserted into the coupling is shown in phantom lines in FIG. 1. Inner ribs 35 are provided in the side wall 14 of the internal inner bore 12. In general, the gripper ring is made from a full hard stainless steel, the coupling parts from plastic, such as, acetal, or for larger couplings, metal, and the tubes or pipe made from copper or conventional PVC used in plumbing polybutylene, CPVC, PEX or other metals and plastics used in plumbing.

As best shown in FIG. 1, the coupling is assembled by placing the O-ring against the ring support surface 16, the spacer bushing is aligned with its flat 36 against the flat 31 of the outer housing and slid into place against the O-ring, the gripper ring is then placed against the spacer bushing with its flat 30 aligning the teeth 29 into the grooves 33 of the spacer bushing. Then the end bushing is placed within the outer housing and welded into place by sonic welding 22. For metal couplings, the outer housing can be secured by any suitable permanent attachment such as crimped or interfering threads. When a tube 26 is to be inserted in the coupling or the coupling inserted over a tube, the tube and the coupling are moved axially to one another with the tube engaging the teeth. The teeth extend into the inner bore of the housing a distance further than the outer diameter of the tube 26 so that the teeth are deflected by the tube as the tube and housing are moved axially to one another. This creates an immediate gripping engagement of the teeth even before any fluid pressure is applied in the coupling. The tube is inserted until it tightly engages the end wall 50 of the bore 12. This can be felt by the user of the coupling since the tube can be pushed to move axially, albeit tightly, until the end of the tube stops against the end wall 50 and cannot be pushed any further relative to the outer housing.

The O-ring seal maintains the fluid seal around the tube. The tube cannot be solely axially withdrawn by fluid pressure without destroying the coupling and will maintain quite a high fluid pressure. The tube can be removed by unscrewing the coupling relative to the tube. The teeth 29 in the gripper ring can be manufactured with a slight twist or by using the full hard stainless steel or equivalent material, such as manganese, or composites, and a ring thickness of no greater than about 0.012 inches, preferably 0.008 inches, then the twist can be created by the forces acting on the teeth as the tube 26 is simultaneously rotated and pulled out of the housing. By rotating the tube while pulling, edges of the gripper teeth will move within the grooves 30 causing friction on one edge of the teeth allowing the teeth to twist and the tube screw out of the gripper ring. If the tube is initially not inserted past the gripper ring, or is not inserted through the O-ring seal, leakage will be apparent almost immediately when the pressure is applied to the plumbing system. Thus, an advantage of this embodiment is it gives an immediate visual check on the proper placement of the tube within the coupling or the position of the test cap over the coupling.

FIG. 4 shows a phantom version of a coupling to illustrate that the coupling could be a test cap as shown in FIG. 1, a valve in U.S. Pat. No. 4,911,406, or simply a mirror image of the right side coupling 50 being on the left side to simply join two tubes together.

FIG. 5 shows an embodiment using the valve or housing 50 a of U.S. Pat. No. 4,911,406 as the coupling. Another advantageous feature of the invention is illustrated in FIG. 5 by showing that pre-cut lengths of tubing or hose 60 can be bonded and crimped as at 61 or otherwise permanently secured to the valve to provide a complete connection from the plumbing system to an appliance or other plumbing fixture. Thus, installation can be made more economically and faster having a complete pre-cut plumbing connection already made-up and available.

As best shown in FIG. 6, the unique coupling is shown with multiple gripper rings in one form as a valve. However, while a valve has been shown in the embodiment of FIG. 6, this is for illustration purposes only and the coupling can be used for a valve, such as shown in U.S. Pat. No. 4,911,406 or any other use for a coupling. This is shown generically in phantom lines in FIG. 9, in which the phantom line box is a valve, a coupling for joining two pieces of tubing together, a shower head, a tub faucet coupling, or any other use where a soft tubular plumbing material is to be joined to more tubing or to some plumbing fixture. These different applications or uses for the coupling are obvious to one of ordinary skill in the art and the details of U.S. Pat. No. 4,911,406 are incorporated herein by reference thereto.

In the couplings of FIGS. 6-11, the invention includes an outer housing 110 having an inner bore 112 with a side wall 114. The inner bore has a seal support surface 116 against which is fitted a conventional O-ring seal 115. The seal is held in the bore by a spacer bushing 118. The spacer bushing has circumferentially spaced axial grooves 133, as best shown in FIG. 7. A metallic gripper ring 127 is provided with circumferentially spaced axially and radially inwardly protruding teeth 129. A second identical gripper ring 132 is provided against the O-ring seal and thus on the opposite side of the spacer bushing 118. The spacer bushing has a flat 136 aligned with a flat 130 on the gripper rings 127, 132. The inside wall of the housing has a protruding flat 131 to receive the flats on the bushing and gripper rings. The gripper rings are also provided with a notch 139 and the spacer bushing provided with a notch 141, which notches engage a protrusion or key 140 (FIG. 6) on the inside wall 114 of the outer housing 110. The flats on the inner bushing and the gripper rings and the notches are provided to assure proper installation of the gripper rings and inner bushing within the housing.

An end bushing 120 is positioned against the gripper ring 127 and holds the O-ring, spacer bushing, and gripper rings tightly together so that the teeth of the gripper rings extend into the inner bore 112. The end bushing is held within the internal bore of the outer housing 110 by sonic welds 122 [FIG. 10]. The end bushing is provided with an inner bore 124 and protruding guide ribs 128 for guiding a plastic or copper tube 126 into the coupling. In the alternative, these ribs can be eliminated so that existing old repaired plumbing tubing with existing ferrules can be fitted into larger diameter of the end bushing 120 as in FIG. 13. The tube end inserted into the coupling is shown in FIG. 6. Inner ribs 135 [FIG. 7] are provided in the side wall 114 of the internal inner bore 112. In general, the gripper rings are made from a full hard stainless steel, the coupling parts from plastic, such as, acetal, or for larger couplings, metal, and the tubes or pipe made from copper, conventional PVC, polybutylene, PEX, or other metals and plastics used in plumbing.

As best shown in FIG. 6, the coupling is assembled by placing the O-ring against the ring support surface 116, the gripper ring 132 is placed against the O-ring, the spacer bushing is aligned with its flat 136 against the flat 131 of the outer housing and slid into place against the gripper ring 132, the gripper ring 127 is then placed against the opposite side of the spacer bushing with its flat 130 aligning the teeth 129 into the grooves 133 of the spacer bushing. Then the end bushing is placed within the outer housing and welded into place by sonic welding 122. For metal couplings, the outer housing can be secured by any suitable permanent attachment such as crimped or interfering threads. When a tube 126 is to be inserted in the coupling or the coupling inserted over a tube, the tube and the coupling are moved axially to one another with the tube engaging the teeth. The teeth of both rings extend into the inner bore of the housing a distance further than the outer diameter of the tube 126 so that the teeth are deflected by the tube as the tube and housing are moved axially to one another. This creates an immediate gripping engagement of the teeth even before any fluid pressure is applied in the coupling. The tube is inserted until it tightly engages the end wall 150 [FIG. 10] of the bore 112. This can be felt by the user of the coupling since the tube can be pushed to move axially, albeit tightly, until the end of the tube stops against the end wall 150 and cannot be pushed any further relative to the outer housing.

The O-ring seal maintains the fluid seal around the tube. The tube cannot be solely axially withdrawn by fluid pressure without destroying the coupling and will maintain quite a high fluid pressure. The tube can be removed by unscrewing the coupling relative to the tube, although with softer plastic tubing the teeth may dig into the tubing more deeply and the gouged surface of the tubing may be damaged when the coupling is unscrewed. In this case, a new tube may be needed or the damaged section of the original tube can be cut-off and the remaining undamaged end of the tubing can then be re-inserted into the coupling. The teeth 129 in the gripper rings can be manufactured with a slight twist or by using the full hard stainless steel or equivalent material, such as manganese, or composites, and a ring thickness of no greater than about 0.012 inches, preferably 0.008 inches, then the twist can be created by the forces acting on the teeth as the tube 126 is simultaneously rotated and pulled out of the housing. By rotating the tube while pulling, edges of the gripper teeth will move within the grooves 130 causing friction on one edge of the teeth allowing the teeth to twist and the tube screw out of the gripper ring.

In the embodiments shown, if the tube is initially not inserted past the gripper ring, or is not inserted through the O-ring seal, leakage will be apparent almost immediately when the pressure is applied to the plumbing system. Thus, an advantage of this embodiment is it gives an immediate visual check on the proper placement of the tube within the coupling or the position of the valve over the coupling.

FIG. 8 shows a typical gripper ring.

FIG. 9 shows a phantom version of a coupling to illustrate that the coupling could be a valve, a coupling joining two tubes, a faucet coupling, a shower head, a test cap, or any other plumbing fixture using a push on coupling.

FIG. 10 shows another embodiment with the same features of the invention but with more gripper rings [three, namely, 127, 177, and 187 being shown] and more spacers 118, 178, and 188.

FIG. 11 shows an embodiment using the coupling as a test cap. A test cap is used in a plumbing system to see if all of the joints are free from leaks and that the proper pressure may be maintained. Usually then the test cap is removed and a permanent cap soldered or bonded onto the tube.

FIG. 12 shows another embodiment similar to FIGS. 10 and 11 but with a spacer 118 a placed between the o-ring and the gripper ring.

FIG. 13 shows a valve having an O-ring seal 115 and one or more gripper rings, preferably two, such as, gripper rings 130 and 132. The end bushing in this embodiment is tapered internally as at 210 so that the metal compression ring 202 of a conventional metal threaded compression type valve fitting can fit into the taper 210 and allow the end of the pipe with the compression ring left intact on the pipe, pushed into the valve until it is past the O-ring seal and with the compression ring abutting the tapered surface of the end bushing. In this embodiment, the push-on valve of this invention replaces the conventional screw on compression fitted valve. The compression nut 200 from the old valve may be left on the pipe exposed or can be pushed back into the hole in the wallboard where it is hidden. The location of the O-ring axially inward of the gripper rings is advantageously employed in this re-piping embodiment because it allows the free end of the pipe of the replaced pipe fitting to be inserted far enough into the valve to pass inside the O-ring and be effectively sealed even though the end of the pipe may not reach the end of the internal bore 112 when the compression ring engages the tapered surface 210 of the end bushing. The gripper rings will, of course, hold the pipe in the valve and within the O-ring seal.

While two and three gripper rings have been shown in the drawing, any multiple of gripper rings can be used within the spacing of the coupling.

While the preferred embodiments have been illustrated and described, it should be apparent that variations will be apparent to one skilled in the art. Accordingly, the invention is not to be limited to the specific embodiments shown in the drawings.

Claims (33)

1. A fluid conduit coupling for removably holding therein a tube having a compression ring thereon without removing the compression ring comprising:
an outer housing having an internal bore with a circumferential side wall,
a seal support surface in said bore,
a seal engaged in said support surface,
at least one spacer bushing retaining said seal in said support surface, said spacer bushing having an axially inner side and an axially outer side,
a gripper ring having radially and axially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore, said gripper ring lying axially outward from said seal, and
an end bushing attached to said outer housing to secure said spacer bushing in said internal bore, said end bushing having an axially outward recess sized to receive the compression ring therein.
2. The coupling of claim 1, said gripper ring lying against the axially inner side of the spacer bushing and against the seal.
3. The coupling of claim 1 including a second gripping ring lying against the axially outer side of said spacer brushing.
4. The coupling of claim 1 wherein said end bushing is welded to said outer housing.
5. The coupling of claim 1, wherein said recess of said end bushing has a inwardly tapering surface, whereby the compression ring is left intact on the tube and the tube is pushed into the coupling until the tube passes said seal and the compression ring abuts the inwardly tapering surface of said end bushing.
6. A fluid conduit coupling comprising:
an outer housing having an internal bore with a circumferential side wall,
a seal in said bore,
a spacer bushing having an axially inner side and an axially outer side,
a first gripper ring having radially and axially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore, said first gripper ring lying adjacent said axially inner side of said spacer bushing, said teeth protruding into said bore for holding a tube against axial movement, said first gripper ring mounted against rotation,
a second gripper ring having radially and axially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore, said second gripper ring lying adjacent said axially outer side of said spacer bushing, said teeth protruding into said bore for holding the tube against axial movement, said second gripper ring mounted against rotation, and
said spacer bushing and first and second gripper rings being held in said internal bore.
7. The coupling of claim 6, further including another spacer bushing axially positioned between said seal and said first gripper ring, and retaining said seal in said internal bore.
8. A conduit coupling for removably holding a tube therein comprising:
an outer housing having an internal bore with a circumferential side wall;
a spacer bushing in said internal bore and having an axially inner side and an axially outer side; and
a first gripper ring in said internal bore and having radially and axially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore, said first gripper ring lying adjacent said axially outer side of said spacer bushing, said first gripper ring held in said outer housing to preclude rotational movement of said first gripper ring,
said spacer bushing having circumferentially spaced grooves and said gripper teeth of said first gripper ring being aligned and fitted within said grooves.
9. The coupling of claim 8 further including a seal in said internal bore, said seal positioned axially inward of said spacer bushing.
10. The coupling of claim 9 wherein said axially inner side of said spacer bushing engages said seal.
11. The coupling of claim 9 further including a second gripper ring in said internal bore positioned axially inward of said spacer bushing and axially outward of said seal, said second gripper ring having radially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore.
12. The coupling of claim 11, said second gripper ring lying against said axially inner side of said spacer bushing and adjacent said seal.
13. The coupling of claim 8 further including a second gripper ring in said internal bore lying adjacent said axially inner side of said spacer bushing, said second gripper ring having radially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore.
14. The coupling of claim 8 further including a second gripper ring in said internal bore positioned axially inward of said first gripper ring, said first and second gripper rings having said spacer bushing therebetween, said second gripper ring having radially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore.
15. The coupling of claim 8 further including a second gripper ring in said internal bore positioned axially outward of said first gripper ring with another spacer bushing therebetween, said second gripper ring having radially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore.
16. The coupling of claim 15 wherein said another spacer bushing has circumferentially spaced grooves, and said gripper teeth of said second gripper ring are aligned and fitted within said grooves of said another spacer bushing.
17. The coupling of claim 15 further including a spacer positioned axially outward of said second gripper ring.
18. The coupling of claim 15 further including a third gripper ring in said internal bore positioned axially inward of said first gripper ring, said first and third gripper rings being separated by said spacer bushing, said third gripper ring having radially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore.
19. The coupling of claim 18 further including a seal in said internal bore, said seal positioned axially inward of said third gripper ring.
20. The coupling of claim 8 further including an end bushing attached to said outer housing to secure said spacer bushing in said internal bore.
21. The coupling of claim 20 wherein said internal bore has circumferentially spaced inner ribs, and said end bushing has circumferentially spaced tube guide ribs.
22. The coupling of claim 20 wherein said end bushing is attached to said outer housing by a weld.
23. The coupling of claim 8 wherein said first gripper ring has a flat on its circumference, said spacer bushing has a flat on its circumference, and said flats engage a mating flat protrusion in said internal bore of said outer housing.
24. The coupling of claim 8 wherein said gripper teeth of said first gripper ring are sufficiently flexible to twist when subjected to simultaneous axial outward directed and rotational force to allow the unscrewing and removal of the tube inserted into the coupling.
25. The coupling of claim 8 wherein said gripper teeth of said first gripper ring have a permanent twist to allow the unscrewing and removal of the tube inserted into the coupling.
26. The coupling of claim 8 wherein said grooves cause friction on one edge of said gripper teeth allowing said gripper teeth to twist and the tube inserted into the coupling to be unscrewed and removed from the coupling.
27. The coupling of claim 8 for use with a tube having a compression ring thereon without removing the compression ring, further including an end bushing attached to said outer housing to secure said spacer bushing in said internal bore, said end bushing having an axially outward recess sized to receive the compression ring therein.
28. The coupling of claim 27 said recess of said end bushing has an inwardly tapered surface.
29. The coupling of claim 27 further including a seal in said internal bore, said seal positioned axially inward of said spacer bushing.
30. The coupling of claim 29 further including a second gripper ring in said internal bore positioned axially inward of said spacer bushing and axially outward of said seal, said second gripper ring having radially inwardly protruding circumferentially spaced gripper teeth having inner edges protruding inwardly into said internal bore.
31. The coupling of claim 30, said second gripper ring lying against said axially inner side of said spacer bushing and adjacent said seal.
32. The coupling of claim 8 wherein said teeth having a twist when subjected to an axial outwardly directed and rotational force for allowing the unscrewing and removal of a tube inserted in said coupling.
33. The coupling of claim 8 wherein said spacer bushing is held in said outer housing to preclude rotational movement of said spacer bushing.
US10266935 1998-12-18 2002-10-07 Tube coupling Active US6860523B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US21637698 true 1998-12-18 1998-12-18
US42590999 true 1999-10-21 1999-10-21
PCT/US1999/031049 WO2000047691A1 (en) 1999-02-09 1999-12-27 Aphron-containing aqueous well drilling and servicing fluids
WOPCT/US99/31049 1999-12-27
US09570846 US6464266B1 (en) 1998-12-18 2000-05-12 Tube coupling
US10266935 US6860523B2 (en) 1998-12-18 2002-10-07 Tube coupling

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US10266935 US6860523B2 (en) 1998-12-18 2002-10-07 Tube coupling
US11061139 US7232159B2 (en) 1998-12-18 2005-02-18 Tube coupling
US11764712 US7523966B2 (en) 1998-12-18 2007-06-18 Tube coupling
US12035993 US7810850B2 (en) 1998-12-18 2008-02-22 Tube coupling
US12426828 US8820799B2 (en) 1998-12-18 2009-04-20 Tube coupling
US14335544 US20150076816A1 (en) 1998-12-18 2014-07-18 Tube coupling

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09570846 Continuation US6464266B1 (en) 1998-12-18 2000-05-12 Tube coupling

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11061139 Continuation US7232159B2 (en) 1998-12-18 2005-02-18 Tube coupling

Publications (2)

Publication Number Publication Date
US20030111840A1 true US20030111840A1 (en) 2003-06-19
US6860523B2 true US6860523B2 (en) 2005-03-01

Family

ID=26910952

Family Applications (7)

Application Number Title Priority Date Filing Date
US09570846 Active US6464266B1 (en) 1998-12-18 2000-05-12 Tube coupling
US10266935 Active US6860523B2 (en) 1998-12-18 2002-10-07 Tube coupling
US11061139 Active US7232159B2 (en) 1998-12-18 2005-02-18 Tube coupling
US11764712 Active US7523966B2 (en) 1998-12-18 2007-06-18 Tube coupling
US12035993 Active 2019-01-18 US7810850B2 (en) 1998-12-18 2008-02-22 Tube coupling
US12426828 Active 2019-06-28 US8820799B2 (en) 1998-12-18 2009-04-20 Tube coupling
US14335544 Pending US20150076816A1 (en) 1998-12-18 2014-07-18 Tube coupling

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US09570846 Active US6464266B1 (en) 1998-12-18 2000-05-12 Tube coupling

Family Applications After (5)

Application Number Title Priority Date Filing Date
US11061139 Active US7232159B2 (en) 1998-12-18 2005-02-18 Tube coupling
US11764712 Active US7523966B2 (en) 1998-12-18 2007-06-18 Tube coupling
US12035993 Active 2019-01-18 US7810850B2 (en) 1998-12-18 2008-02-22 Tube coupling
US12426828 Active 2019-06-28 US8820799B2 (en) 1998-12-18 2009-04-20 Tube coupling
US14335544 Pending US20150076816A1 (en) 1998-12-18 2014-07-18 Tube coupling

Country Status (7)

Country Link
US (7) US6464266B1 (en)
JP (1) JP4511738B2 (en)
CN (1) CN100368721C (en)
DE (2) DE69908179T2 (en)
EP (1) EP1141610B1 (en)
ES (1) ES2198162T3 (en)
WO (1) WO2000036327A1 (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050184519A1 (en) * 1998-12-18 2005-08-25 Accor Technology, Inc. Tube coupling
US20060108804A1 (en) * 2004-11-01 2006-05-25 Wcm Industries, Inc. Wall hydrant with slip clutch assembly
US20070039649A1 (en) * 2005-08-22 2007-02-22 Wcm Industries, Inc. Yard hydrant with drain port air line
US20070044852A1 (en) * 2005-08-29 2007-03-01 Thomas Pinette Waterway connection
US20070137714A1 (en) * 2005-12-20 2007-06-21 Meehan Steven K Faucet spout with water isolating couplings
US20070271695A1 (en) * 2006-05-26 2007-11-29 Kurt Judson Thomas Faucet including a molded waterway assembly
US20080006327A1 (en) * 2005-11-01 2008-01-10 Wcm Industries, Inc. Hydrant Roof Mount
US20080178950A1 (en) * 2007-01-31 2008-07-31 Garry Robin Marty Mixing valve including a molded waterway assembly
US20080178957A1 (en) * 2007-01-31 2008-07-31 Masco Corporation Of Indiana Tube assembly
US20080178942A1 (en) * 2007-01-31 2008-07-31 Masco Corporation Of Indiana Overmold interface for fluid carrying system
US20090032170A1 (en) * 2007-07-30 2009-02-05 Williams Robert M Apparatus, tools and methods for connecting non-solvent weldable tubing to solvent weldable tubing and fittings
US20090194990A1 (en) * 2008-02-05 2009-08-06 Williams Robert M Toothed gripper members, plumbing connection assemblies and methods for forming the same
US20100071778A1 (en) * 2008-09-25 2010-03-25 Nelson Alfred C Spout tip retention method
US7717133B2 (en) 2007-01-31 2010-05-18 Masco Corporation Of Indiana Spout tip attachment
US20100206392A1 (en) * 2009-02-18 2010-08-19 Wcm Industries, Inc. Automatic Draining Freezeless Wall Faucet
US20110079307A1 (en) * 2008-06-25 2011-04-07 Marty Garry R Centerset Faucet With Mountable Spout
US20110088790A1 (en) * 2009-10-21 2011-04-21 Schutte Joseph P Bias release cartridge
US20110089681A1 (en) * 2009-10-21 2011-04-21 Schutte Joseph P Supply stop with connection verification
US20110089684A1 (en) * 2009-10-21 2011-04-21 Schutte Joseph P Anti-rotation gripper ring
US20110175348A1 (en) * 2010-01-21 2011-07-21 Automatic Switch Company Valve connections
US20110220208A1 (en) * 2010-03-15 2011-09-15 Wcm Industries, Inc. Sanitary Hydrant
US20120137428A1 (en) * 2010-12-06 2012-06-07 Ruifu Wang Faucet connecting structure
US8739826B2 (en) 2011-03-11 2014-06-03 Masco Corporation Of Indiana Centerset faucet body and method of making same
US8931500B2 (en) 2012-02-17 2015-01-13 Masco Corporation Of Indiana Two handle centerset faucet
US8991425B2 (en) 2006-05-26 2015-03-31 Delta Faucet Company Waterway assembly including an overmolded support plate
US9151397B2 (en) 2008-04-10 2015-10-06 Delta Faucet Company Molded waterway for a two handle faucet
US9506592B2 (en) 2009-10-21 2016-11-29 Brass-Craft Manufacturing Company Supply stop with connection verification
US9611958B1 (en) 2007-01-05 2017-04-04 Zurn Industries, Llc Combination mechanical/fusion pipe fitting with push connect coupling arrangement

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000055872A1 (en) * 1999-03-17 2000-09-21 Electrical Moulded Components Pacific Pty. Ltd. Improved electrical bushings with resin casting
US6913292B2 (en) * 2001-01-19 2005-07-05 Victaulic Company Of America Mechanical pipe coupling derived from a standard fitting
US20060265852A1 (en) * 2001-01-19 2006-11-30 Victaulic Company Triple-expanded mechanical pipe coupling derived from a standard fitting
US20050146133A1 (en) * 2001-01-19 2005-07-07 Victaulic Company Of America Mechanical pipe coupling derived from a standard fitting
US20020135184A1 (en) * 2001-01-19 2002-09-26 Snyder Ronald R. Mechanical pipe coupling derived from a standard fitting
US7121593B2 (en) 2001-01-19 2006-10-17 Victaulic Company Triple-expanded mechanical pipe coupling derived from a standard fitting
US7500699B2 (en) * 2001-01-19 2009-03-10 Victaulic Company Clamping mechanical pipe coupling derived from a standard fitting
DE10109482A1 (en) * 2001-02-28 2002-09-12 Festo Ag & Co Piston rod-less linear actuator has means of locking provided on pivotable cover section for releasable locking fixing in covering position of longitudinal slot, with locking effected by component bearing pressure upon cover strip
US6765143B2 (en) * 2001-07-09 2004-07-20 Bridgeport Fittings, Inc. Tubing and conduit coupling or connector assembly
DE10162657B4 (en) * 2001-12-20 2004-06-17 Festo Ag & Co. Connector for fluid lines and thus equipped fluidic device
US7354079B2 (en) * 2002-04-23 2008-04-08 Watts Sea Tech, Inc. Connector
WO2004013525A3 (en) * 2002-07-31 2004-06-17 Pentapure Inc Tubing attachment
JP4252785B2 (en) * 2002-10-01 2009-04-08 株式会社パイオラックス Piping connector and a method of manufacturing the same
WO2004072536A1 (en) * 2003-02-07 2004-08-26 Agricultural Products, Inc. Irrigation connectors
KR200318911Y1 (en) * 2003-02-17 2003-07-04
US6988747B2 (en) * 2003-03-20 2006-01-24 Rain Bird Corporation Multi-diameter tube coupling
US7506899B2 (en) * 2003-03-20 2009-03-24 Rain Bird Corporation Multi-diameter tube fitting
US7156423B2 (en) * 2003-04-11 2007-01-02 3M Innovative Properties Company Plastic tube joint
US9429262B2 (en) 2003-05-29 2016-08-30 Orbit Irrigation Products, Inc. Conduit coupling apparatus and method
US20090160178A1 (en) * 2003-05-29 2009-06-25 Ericksen Kent C Centering system for coupling for irrigation system
US20090160179A1 (en) * 2003-05-29 2009-06-25 Ericksen Kent C Coupling release mechanism for irrigation system
US7021672B2 (en) * 2003-05-29 2006-04-04 Orbit Irrigation Products, Inc. Irrigation coupling apparatus and method
WO2012162554A1 (en) * 2011-05-24 2012-11-29 Orbit Irrigation Products, Inc. Conduit coupling apparatus and method
CA2532119C (en) 2003-07-04 2010-01-19 Friatec Aktiengesellschaft Plug-in connector
CN1324258C (en) * 2003-10-14 2007-07-04 安业环球有限公司 Pipe joint for water or vapor
US7257999B2 (en) * 2003-11-25 2007-08-21 H20 Watch, Inc. Liquid dispenser with volume meter
US7419194B2 (en) * 2004-06-25 2008-09-02 Rain Bird Corporation Removable flush cap for a multi-diameter tube coupling
US7341286B2 (en) * 2004-12-09 2008-03-11 Cooper Standard Automotive, Inc. Fluid coupling with dual function retention ring
EP1872047B1 (en) * 2005-02-25 2013-05-15 Glynwed Pipe Systems Limited Multi-layered pipe coupling
US7455330B2 (en) * 2005-04-28 2008-11-25 Kulm Holding Ag Quick coupling
NL1029412C2 (en) * 2005-07-03 2007-01-08 Widee Bv Coupling between two bodies.
US20100263884A1 (en) * 2005-09-07 2010-10-21 Lubrizol Advanced Materials, Inc. System And Method Of Assembly Of CPVC Piping System Employing Mechanical Couplings And Supports
EP1783415B1 (en) * 2005-11-04 2013-04-17 Pres-Block S.P.A. Fast-fit coupling for a fluid circulation system
DE102005061408A1 (en) 2005-12-22 2007-06-28 Robert Bosch Gmbh Combined plastic and metal component e.g. automotive fuel injection valve has serrated metal edge to plastic interface
US7488008B2 (en) 2006-07-28 2009-02-10 Jain Irrigation, Inc. Vari-stage coupling device
US7832773B2 (en) * 2006-09-18 2010-11-16 Krohn Kenneth P Adjustable connector and method for its use
US20080223561A1 (en) * 2007-01-26 2008-09-18 Hayward Industries, Inc. Heat Exchangers and Headers Therefor
US7971603B2 (en) * 2007-01-26 2011-07-05 Hayward Industries, Inc. Header for a heat exchanger
US20080264617A1 (en) * 2007-04-26 2008-10-30 David Martin Heat exchanger
US8109539B2 (en) * 2007-07-17 2012-02-07 Krohn Kenneth P Variable joining device and method for its use
US8474877B2 (en) 2007-09-19 2013-07-02 Bridgeport Fittings, Inc. Push-in fitting for electrical metallic tubing with enhanced sealing and continuity
US7841630B1 (en) 2007-09-19 2010-11-30 Bridgeport Fittings, Inc. Electric metal tube push-in fitting
US20100283237A1 (en) * 2009-01-24 2010-11-11 Krohn Kenneth P Device for connecting to ducts of various sizes and shapes
US20090194989A1 (en) * 2008-02-06 2009-08-06 Krohn Kenneth P Duct coupling adjustment and thrust load restraint system
US20090208271A1 (en) * 2008-02-19 2009-08-20 Krohn Kenneth P Modular coupling system
US20090218808A1 (en) * 2008-03-01 2009-09-03 Krohn Kenneth P Improved duct coupling system
US20090230678A1 (en) * 2008-03-14 2009-09-17 Krohn Kenneth P Compression fitting adjustment system
US20090278346A1 (en) * 2008-05-07 2009-11-12 O'brien Kevin Connector
US7607456B1 (en) 2008-06-19 2009-10-27 Lsp Products Group, Inc. Plug for hydrostatic testing of flexible polymeric pipe or tubing
CN101329000B (en) * 2008-07-11 2012-10-03 多升投资有限公司 Fluid pipe connection apparatus and matching pipe dismantling tools thereof
US20100019484A1 (en) * 2008-07-23 2010-01-28 Krohn Kenneth P Compression fitting adjustment system
WO2010013339A1 (en) * 2008-07-31 2010-02-04 オーエヌ工業株式会社 Single action joint for piping
FR2938038B1 (en) * 2008-11-04 2014-01-17 Legris Sa Sealing element without retention area and connecting device comprising such SEALING ELEMENT
US20100133810A1 (en) * 2008-11-29 2010-06-03 Krohn Kenneth P Device for connecting to ducts of various sizes and shapes
US20100171302A1 (en) * 2009-01-05 2010-07-08 Nibco Inc. Push-twist connector
US8342579B2 (en) * 2009-02-03 2013-01-01 Hennemann Thomas L Push lock pipe connection system
US9810358B2 (en) * 2009-02-03 2017-11-07 Aqseptence Group, Inc. Male push lock pipe connection system
US8814219B2 (en) 2009-02-03 2014-08-26 Bilfinger Water Technologies, Inc. Push lock pipe connection system and disconnection tool
FR2950948A1 (en) 2009-10-06 2011-04-08 Legris Sas A quick coupling having guide areas and sealing REVERSE
US20110180095A1 (en) * 2010-01-25 2011-07-28 George Chen Electric eyelash brush
US8487197B2 (en) 2010-08-11 2013-07-16 Bridgeport Fittings, Inc. Removable push electrical fitting for electrical metallic tubing or EMT having improved pullout resistance
US8274000B2 (en) 2010-08-11 2012-09-25 Bridgeport Fittings, Inc. Removable push electrical fitting for electrical metallic tubing or EMT
EP2627938A4 (en) * 2010-10-15 2015-12-16 Swagelok Co Push to connect conduit fitting with ferrule
CN102062270B (en) * 2010-10-29 2013-12-11 翟秋朗 Tube connector
CN103261361B (en) 2010-12-20 2016-06-15 3M创新有限公司 A method for processing a hydrocarbon-bearing formation with a carbonate-containing fluorinated amine oxides
US20120200081A1 (en) * 2011-02-09 2012-08-09 A. Raymond Et Cie Connector apparatus
WO2013056273A4 (en) * 2011-10-12 2013-08-15 Livizone (Pty) Ltd Push-fit fitting with grip nut for pipes
US8657343B2 (en) * 2012-02-06 2014-02-25 Watts Water Technologies, Inc. Quick connector assembly
WO2014018860A1 (en) * 2012-07-26 2014-01-30 A. Raymond Et Cie Pipe or tube connector assembly
USD732359S1 (en) 2012-08-21 2015-06-23 Orbit Irrigation Products, Inc. Conduit removal tool
US8801048B2 (en) * 2012-11-27 2014-08-12 Charlotte Pipe And Foundry Company Mechanical pipe coupling assembly without adhesive or bonding agent
US9447906B2 (en) 2013-12-11 2016-09-20 Nibco Inc. Self-locking push-to-connect insert
US9541228B2 (en) 2013-12-11 2017-01-10 Nibco Inc. Push-to-connect fitting
US9777875B2 (en) 2014-02-26 2017-10-03 Nibco Inc. Clam shell push-to-connect assembly
JP5937122B2 (en) 2014-02-27 2016-06-22 星野楽器株式会社 Pipe holding device
US9810359B2 (en) * 2014-10-06 2017-11-07 Spears Manufacturing Co. Pipe coupling
US9765912B2 (en) 2014-11-06 2017-09-19 Spears Manufacturing Co. Telescoping pipe coupling
US9611970B2 (en) 2014-11-06 2017-04-04 Spears Manufacturing Co. Pipe cap
US9464415B2 (en) 2014-11-26 2016-10-11 Kohler Co. Faucet
US20170009921A1 (en) * 2015-07-09 2017-01-12 Mitchell W. Hunt Quick-Connector

Citations (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1440207A (en) * 1920-03-26 1922-12-26 John A Burns Device for holding cylindrical bodies, such as pipes, rods, and the like against endwise movement
US2484192A (en) 1947-04-10 1949-10-11 Squiller Samuel Connector for thin wall conduits
US2840395A (en) * 1957-05-06 1958-06-24 Tarnow Nathan Conduit fitting with spring washer retaining means
US3135033A (en) 1960-06-08 1964-06-02 Kings Electronics Inc Gripper for cables and the like
US3204988A (en) * 1960-05-18 1965-09-07 Dresser Ind Stab type pipe coupling with gasket back up ring
US3312484A (en) 1960-10-31 1967-04-04 D & G Plastics Co Toggle ring tube coupling
US3429596A (en) 1966-08-15 1969-02-25 D & G Plastic Co Quick-connect coupling assembly
US3837687A (en) 1972-12-29 1974-09-24 G Leonard Coupling for tubing
US3874709A (en) 1972-09-18 1975-04-01 Cardinal Of Adrian Tubing fitting
US3995897A (en) 1975-04-21 1976-12-07 Eaton Corporation Coupling
US4059297A (en) 1976-03-08 1977-11-22 Parker-Hannifin Corporation Tube coupling
US4062574A (en) 1976-10-05 1977-12-13 Scholin Industries, Inc. Fitting assembly
US4073514A (en) * 1976-05-26 1978-02-14 Indian Head Inc. Combination pipe fitting and retainer ring
US4084843A (en) 1975-05-02 1978-04-18 Willy Gassert Quick-acting hose or pipe coupling
GB1520150A (en) 1975-11-14 1978-08-02 Hepworth Plastics Ltd Pipe couplings
US4146254A (en) 1976-03-31 1979-03-27 Bristol Products, Inc. Coupler for tubing
US4181329A (en) 1979-02-02 1980-01-01 Gordon H. Cork Releasable tube coupling
US4288113A (en) 1979-07-06 1981-09-08 Parker-Hannifin Corporation Quick connector coupling for semi-rigid hose
US4324407A (en) 1980-10-06 1982-04-13 Aeroquip Corporation Pressure actuated metal-to-metal seal
US4390159A (en) 1981-04-27 1983-06-28 Duncan Ronnie J Snap-on shut off valve
US4490576A (en) 1981-08-10 1984-12-25 Appleton Electric Co. Connector for use with jacketed metal clad cable
US4508369A (en) 1978-06-02 1985-04-02 Nycoil Corporation Releasable coupling device
US4586734A (en) 1982-12-08 1986-05-06 General Industries, Inc. Pipe joint assembly
US4593943A (en) 1983-08-23 1986-06-10 Kabushiki Kaisha Nihon Pisco Tubing joint
US4613172A (en) 1984-07-10 1986-09-23 Cejn Ag Releasable plug-in socket pipe coupling
US4632437A (en) 1985-04-03 1986-12-30 Robson Anthony R Pipe coupling
US4635975A (en) 1985-09-25 1987-01-13 Jaco Manufacturing Company Quick-connect tube coupling
US4655486A (en) 1986-02-07 1987-04-07 Price Pfister, Inc. Water faucet inlet line connector
US4676533A (en) 1984-11-13 1987-06-30 Tolo, Inc. Reversible lock and seal apparatus
US4717179A (en) 1985-03-08 1988-01-05 Agintec Ag Pipe union for end to end pipes with deformable clamping disks surrounding a seal
US4722558A (en) 1985-07-02 1988-02-02 Parker Hannifin Rak, Sa Pronged fitting
US4749214A (en) 1985-09-17 1988-06-07 John T. Hoskins Quick connect fluid coupling
US4777669A (en) 1987-05-13 1988-10-18 Sloan Valve Company Flush valve/flush tube connection
US4875709A (en) 1988-02-26 1989-10-24 Caroll James E Controlled leak path
US4890865A (en) 1986-11-18 1990-01-02 Smc Corporation Tube joint for use with multi-walled tube assembly
US4911406A (en) 1989-01-11 1990-03-27 Accor Technology, Inc. Fluid conduit coupling apparatus
US5052723A (en) 1989-09-11 1991-10-01 Proprietary Technology, Inc. Locking accommodating sealing port
US5094467A (en) 1989-06-30 1992-03-10 Pont-A-Mousson S.A. Pipe gasket with limited penetration locking elements
US5160179A (en) 1989-11-20 1992-11-03 Ckd Corporation Pipe coupler with split ring chuck
US5174331A (en) 1989-11-02 1992-12-29 Val Products, Inc. Pressure regulator
US5205568A (en) 1991-03-14 1993-04-27 Festo Kg Sealing ring
EP0602498A1 (en) 1992-12-18 1994-06-22 RTGAMMA S.p.A Reusable fast coupling and self-locking coupler
EP0610538A1 (en) 1993-02-12 1994-08-17 Anton Hummel Verwaltungs-GmbH Quick connection for pipes, hoses and the like
GB2280006A (en) 1993-07-09 1995-01-18 T H D Manufacturing Limited Push-fit pipe coupling
DE9415532U1 (en) 1994-09-13 1995-02-16 Norm Technik E Panzerschlauchp The self-sealing connecting element, in particular for liquid media
US5439258A (en) 1993-08-17 1995-08-08 Production Control Units, Inc. Tube coupling unit
US5496076A (en) 1994-08-30 1996-03-05 Lin; Yo-Chia Fast tube connector structure
US5527073A (en) 1991-07-23 1996-06-18 The University Of Manchester Institute Of Science And Technology Coupling
US5553901A (en) * 1991-12-26 1996-09-10 Legris S.A. Device for connecting a length of duct to a coupling endpiece
WO1997000314A1 (en) 1995-06-15 1997-01-03 Chemodyne S.A. Cell culture device
US5621191A (en) * 1993-03-27 1997-04-15 Hawke Cable Glands Limited Cable gland
US5681062A (en) 1995-09-27 1997-10-28 Kunimorikagaku Ltd. Tubular joint
US5695224A (en) 1995-08-14 1997-12-09 The Rovac Corporation Pipe joint assembly
US5722702A (en) 1996-04-12 1998-03-03 Arnco Corporation Plastic pipe compression coupler
US5782570A (en) * 1995-10-23 1998-07-21 Chicago Pneumatic Tool Company Alignment of attachment(s) mounted on a power tool
US5799985A (en) * 1996-08-13 1998-09-01 Tuthill Corporation Tube testing connector
US6464266B1 (en) * 1998-12-18 2002-10-15 Accor Technology, Inc. Tube coupling
US20030067170A1 (en) * 2001-01-19 2003-04-10 Snyder Ronald R. Clamping mechanical pipe coupling derived from a standard fitting

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US517192A (en) * 1894-03-27 Hose-coupling
US433750A (en) * 1890-08-05 Pipe-joint
US543871A (en) * 1895-08-06 Hose-coupler
US2158757A (en) 1938-07-11 1939-05-16 William J Katzberg Coupling
US2347044A (en) * 1941-10-10 1944-04-18 Joseph E Frances Pipe bell hub and sealing means
US3312483A (en) * 1960-08-17 1967-04-04 D And G Plastics Co Pipe connector
US3429598A (en) 1965-10-15 1969-02-25 Moog Industries Inc Ball joint unit for steerable vehicle wheels
BE789145A (en) * 1971-09-27 1973-01-15 Phone Ducs Duct sections
NL7404779A (en) * 1974-04-08 1975-10-10 Air O Mulder Bv About torque.
GB2186848B (en) * 1986-02-21 1989-11-08 Plessey Co Plc Reaction jet control system
JPH01275991A (en) * 1988-04-26 1989-11-06 Junkosha Co Ltd Pipe fitting
FR2702818B1 (en) * 1993-03-19 1995-06-02 Legris Sa instant connection coupling claw.
DE69633510D1 (en) * 1995-07-07 2004-11-04 Marley Tile Ag Luzern Lucerne Plug pipe connection
US6685230B1 (en) 2000-07-26 2004-02-03 Olab S.R.L. Rapid connection for tubes
US6663145B1 (en) 2000-11-06 2003-12-16 Group Timberline, Inc. Conduit coupling with interior grip rings
DE20020052U1 (en) 2000-11-25 2001-03-15 Festo Ag & Co Connection device for a fluid line
US20040239115A1 (en) 2001-01-19 2004-12-02 Victaulic Company Of America Mechanical pipe coupling derived from a standard fitting
US6869108B2 (en) * 2001-02-19 2005-03-22 Jinbo Precision Ind. Co., Ltd. Tube coupler
EP1366318B1 (en) 2001-03-05 2005-05-25 Raufoss Water & Gas AS Coupling for connection of a tube or hose by pushing-in
DE10162657B4 (en) 2001-12-20 2004-06-17 Festo Ag & Co. Connector for fluid lines and thus equipped fluidic device
WO2004013525A3 (en) 2002-07-31 2004-06-17 Pentapure Inc Tubing attachment

Patent Citations (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1440207A (en) * 1920-03-26 1922-12-26 John A Burns Device for holding cylindrical bodies, such as pipes, rods, and the like against endwise movement
US2484192A (en) 1947-04-10 1949-10-11 Squiller Samuel Connector for thin wall conduits
US2840395A (en) * 1957-05-06 1958-06-24 Tarnow Nathan Conduit fitting with spring washer retaining means
US3204988A (en) * 1960-05-18 1965-09-07 Dresser Ind Stab type pipe coupling with gasket back up ring
US3135033A (en) 1960-06-08 1964-06-02 Kings Electronics Inc Gripper for cables and the like
US3312484A (en) 1960-10-31 1967-04-04 D & G Plastics Co Toggle ring tube coupling
US3429596A (en) 1966-08-15 1969-02-25 D & G Plastic Co Quick-connect coupling assembly
US3874709A (en) 1972-09-18 1975-04-01 Cardinal Of Adrian Tubing fitting
US3837687A (en) 1972-12-29 1974-09-24 G Leonard Coupling for tubing
US3995897A (en) 1975-04-21 1976-12-07 Eaton Corporation Coupling
US4084843A (en) 1975-05-02 1978-04-18 Willy Gassert Quick-acting hose or pipe coupling
GB1520150A (en) 1975-11-14 1978-08-02 Hepworth Plastics Ltd Pipe couplings
US4059297A (en) 1976-03-08 1977-11-22 Parker-Hannifin Corporation Tube coupling
US4124235A (en) 1976-03-08 1978-11-07 Parker-Hannifin Corporation Tube coupling
US4146254A (en) 1976-03-31 1979-03-27 Bristol Products, Inc. Coupler for tubing
US4073514A (en) * 1976-05-26 1978-02-14 Indian Head Inc. Combination pipe fitting and retainer ring
US4062574A (en) 1976-10-05 1977-12-13 Scholin Industries, Inc. Fitting assembly
US4508369A (en) 1978-06-02 1985-04-02 Nycoil Corporation Releasable coupling device
US4181329A (en) 1979-02-02 1980-01-01 Gordon H. Cork Releasable tube coupling
US4288113A (en) 1979-07-06 1981-09-08 Parker-Hannifin Corporation Quick connector coupling for semi-rigid hose
US4324407A (en) 1980-10-06 1982-04-13 Aeroquip Corporation Pressure actuated metal-to-metal seal
US4390159A (en) 1981-04-27 1983-06-28 Duncan Ronnie J Snap-on shut off valve
US4490576A (en) 1981-08-10 1984-12-25 Appleton Electric Co. Connector for use with jacketed metal clad cable
US4586734A (en) 1982-12-08 1986-05-06 General Industries, Inc. Pipe joint assembly
US4593943A (en) 1983-08-23 1986-06-10 Kabushiki Kaisha Nihon Pisco Tubing joint
US4747626A (en) 1983-08-23 1988-05-31 Kabushiki Kaisha Nihon Pisco Tubing joint
US4613172A (en) 1984-07-10 1986-09-23 Cejn Ag Releasable plug-in socket pipe coupling
US4676533A (en) 1984-11-13 1987-06-30 Tolo, Inc. Reversible lock and seal apparatus
US4717179A (en) 1985-03-08 1988-01-05 Agintec Ag Pipe union for end to end pipes with deformable clamping disks surrounding a seal
US4632437A (en) 1985-04-03 1986-12-30 Robson Anthony R Pipe coupling
US4722558A (en) 1985-07-02 1988-02-02 Parker Hannifin Rak, Sa Pronged fitting
US4749214A (en) 1985-09-17 1988-06-07 John T. Hoskins Quick connect fluid coupling
US4635975A (en) 1985-09-25 1987-01-13 Jaco Manufacturing Company Quick-connect tube coupling
US4655486A (en) 1986-02-07 1987-04-07 Price Pfister, Inc. Water faucet inlet line connector
US4890865A (en) 1986-11-18 1990-01-02 Smc Corporation Tube joint for use with multi-walled tube assembly
US4777669A (en) 1987-05-13 1988-10-18 Sloan Valve Company Flush valve/flush tube connection
US4875709A (en) 1988-02-26 1989-10-24 Caroll James E Controlled leak path
US4911406A (en) 1989-01-11 1990-03-27 Accor Technology, Inc. Fluid conduit coupling apparatus
US5094467A (en) 1989-06-30 1992-03-10 Pont-A-Mousson S.A. Pipe gasket with limited penetration locking elements
US5052723A (en) 1989-09-11 1991-10-01 Proprietary Technology, Inc. Locking accommodating sealing port
US5174331A (en) 1989-11-02 1992-12-29 Val Products, Inc. Pressure regulator
US5160179A (en) 1989-11-20 1992-11-03 Ckd Corporation Pipe coupler with split ring chuck
US5205568A (en) 1991-03-14 1993-04-27 Festo Kg Sealing ring
US5527073A (en) 1991-07-23 1996-06-18 The University Of Manchester Institute Of Science And Technology Coupling
US5553901A (en) * 1991-12-26 1996-09-10 Legris S.A. Device for connecting a length of duct to a coupling endpiece
EP0602498A1 (en) 1992-12-18 1994-06-22 RTGAMMA S.p.A Reusable fast coupling and self-locking coupler
EP0610538A1 (en) 1993-02-12 1994-08-17 Anton Hummel Verwaltungs-GmbH Quick connection for pipes, hoses and the like
US5621191A (en) * 1993-03-27 1997-04-15 Hawke Cable Glands Limited Cable gland
GB2280006A (en) 1993-07-09 1995-01-18 T H D Manufacturing Limited Push-fit pipe coupling
US5439258A (en) 1993-08-17 1995-08-08 Production Control Units, Inc. Tube coupling unit
US5496076A (en) 1994-08-30 1996-03-05 Lin; Yo-Chia Fast tube connector structure
DE9415532U1 (en) 1994-09-13 1995-02-16 Norm Technik E Panzerschlauchp The self-sealing connecting element, in particular for liquid media
WO1997000314A1 (en) 1995-06-15 1997-01-03 Chemodyne S.A. Cell culture device
US5695224A (en) 1995-08-14 1997-12-09 The Rovac Corporation Pipe joint assembly
US5681062A (en) 1995-09-27 1997-10-28 Kunimorikagaku Ltd. Tubular joint
US5782570A (en) * 1995-10-23 1998-07-21 Chicago Pneumatic Tool Company Alignment of attachment(s) mounted on a power tool
US5722702A (en) 1996-04-12 1998-03-03 Arnco Corporation Plastic pipe compression coupler
US5799985A (en) * 1996-08-13 1998-09-01 Tuthill Corporation Tube testing connector
US6464266B1 (en) * 1998-12-18 2002-10-15 Accor Technology, Inc. Tube coupling
US20030067170A1 (en) * 2001-01-19 2003-04-10 Snyder Ronald R. Clamping mechanical pipe coupling derived from a standard fitting

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7810850B2 (en) 1998-12-18 2010-10-12 Accor Technology, Inc. Tube coupling
US20050184519A1 (en) * 1998-12-18 2005-08-25 Accor Technology, Inc. Tube coupling
US20090243288A1 (en) * 1998-12-18 2009-10-01 Accor Technology, Inc. Tube coupling
US8820799B2 (en) 1998-12-18 2014-09-02 Accor Technology, Inc. Tube coupling
US7523966B2 (en) 1998-12-18 2009-04-28 Accor Technology, Inc. Tube coupling
US7232159B2 (en) * 1998-12-18 2007-06-19 Accor Technology, Inc. Tube coupling
US20060108804A1 (en) * 2004-11-01 2006-05-25 Wcm Industries, Inc. Wall hydrant with slip clutch assembly
US7111875B2 (en) * 2004-11-01 2006-09-26 Wcm Industries, Inc. Wall hydrant with slip clutch assembly
US20070039649A1 (en) * 2005-08-22 2007-02-22 Wcm Industries, Inc. Yard hydrant with drain port air line
US20110005624A1 (en) * 2005-08-29 2011-01-13 Thomas Pinette Waterway connection
US20070044852A1 (en) * 2005-08-29 2007-03-01 Thomas Pinette Waterway connection
US8464748B2 (en) 2005-08-29 2013-06-18 Masco Corporation Of Indiana Waterway connection
US7793677B2 (en) 2005-08-29 2010-09-14 Masco Corporation Of Indiana Waterway connection
US7730901B2 (en) 2005-11-01 2010-06-08 Wcm Industries, Inc. Hydrant roof mount
US20080006327A1 (en) * 2005-11-01 2008-01-10 Wcm Industries, Inc. Hydrant Roof Mount
US20070137714A1 (en) * 2005-12-20 2007-06-21 Meehan Steven K Faucet spout with water isolating couplings
US7992590B2 (en) 2005-12-20 2011-08-09 Masco Corporation Of Indiana Faucet spout with water isolating couplings
US20080308165A1 (en) * 2005-12-20 2008-12-18 Steven Kyle Meehan Faucet spout with water isolating couplings
US20090020177A1 (en) * 2006-05-26 2009-01-22 Masco Corporation Of Indiana Valve mounting assembly
US8365770B2 (en) 2006-05-26 2013-02-05 Masco Corporation Of Indiana Faucet including a molded waterway assembly
US20070271695A1 (en) * 2006-05-26 2007-11-29 Kurt Judson Thomas Faucet including a molded waterway assembly
US8985146B2 (en) 2006-05-26 2015-03-24 Delta Faucet Company Faucet including a molded waterway assembly
US8991425B2 (en) 2006-05-26 2015-03-31 Delta Faucet Company Waterway assembly including an overmolded support plate
US7819137B2 (en) 2006-05-26 2010-10-26 Masco Corporation Of Indiana Valve mounting assembly
US7766043B2 (en) 2006-05-26 2010-08-03 Masco Corporation Of Indiana Faucet including a molded waterway assembly
US9611958B1 (en) 2007-01-05 2017-04-04 Zurn Industries, Llc Combination mechanical/fusion pipe fitting with push connect coupling arrangement
US20080178957A1 (en) * 2007-01-31 2008-07-31 Masco Corporation Of Indiana Tube assembly
US20090126820A1 (en) * 2007-01-31 2009-05-21 Kurt Judson Thomas Tube assembly
US7748409B2 (en) 2007-01-31 2010-07-06 Masco Corporation Of Indiana Overmold interface for fluid carrying system
US7717133B2 (en) 2007-01-31 2010-05-18 Masco Corporation Of Indiana Spout tip attachment
US7806141B2 (en) 2007-01-31 2010-10-05 Masco Corporation Of Indiana Mixing valve including a molded waterway assembly
US20080178942A1 (en) * 2007-01-31 2008-07-31 Masco Corporation Of Indiana Overmold interface for fluid carrying system
US20080178950A1 (en) * 2007-01-31 2008-07-31 Garry Robin Marty Mixing valve including a molded waterway assembly
US8469056B2 (en) 2007-01-31 2013-06-25 Masco Corporation Of Indiana Mixing valve including a molded waterway assembly
US20090032170A1 (en) * 2007-07-30 2009-02-05 Williams Robert M Apparatus, tools and methods for connecting non-solvent weldable tubing to solvent weldable tubing and fittings
US20090194990A1 (en) * 2008-02-05 2009-08-06 Williams Robert M Toothed gripper members, plumbing connection assemblies and methods for forming the same
US9151397B2 (en) 2008-04-10 2015-10-06 Delta Faucet Company Molded waterway for a two handle faucet
US8695625B2 (en) 2008-06-25 2014-04-15 Masco Corporation Of Indiana Centerset faucet with mountable spout
US20110079307A1 (en) * 2008-06-25 2011-04-07 Marty Garry R Centerset Faucet With Mountable Spout
US8590572B2 (en) 2008-09-25 2013-11-26 Masco Corporation Of Indiana Spout tip retention method
US8104512B2 (en) 2008-09-25 2012-01-31 Masco Corporation Of Indiana Spout tip retention method
US20100071778A1 (en) * 2008-09-25 2010-03-25 Nelson Alfred C Spout tip retention method
US20100206392A1 (en) * 2009-02-18 2010-08-19 Wcm Industries, Inc. Automatic Draining Freezeless Wall Faucet
US9506592B2 (en) 2009-10-21 2016-11-29 Brass-Craft Manufacturing Company Supply stop with connection verification
US20110089681A1 (en) * 2009-10-21 2011-04-21 Schutte Joseph P Supply stop with connection verification
US20110088790A1 (en) * 2009-10-21 2011-04-21 Schutte Joseph P Bias release cartridge
US20110089684A1 (en) * 2009-10-21 2011-04-21 Schutte Joseph P Anti-rotation gripper ring
US9523454B2 (en) 2009-10-21 2016-12-20 Brasscraft Manufacturing Company Anti-rotation gripper ring
US9464743B2 (en) 2009-10-21 2016-10-11 Brass-Craft Manufacturing Company Bias release cartridge
US9494268B2 (en) 2009-10-21 2016-11-15 Brasscraft Manufacturing Company Supply stop with connection verification
US8833733B2 (en) 2010-01-21 2014-09-16 Automatic Switch Company Valve connections
WO2011090856A1 (en) 2010-01-21 2011-07-28 Automatic Switch Company Connection for valves
US20110175348A1 (en) * 2010-01-21 2011-07-21 Automatic Switch Company Valve connections
US8955538B2 (en) 2010-03-15 2015-02-17 Wcm Industries, Inc. Sanitary hydrant
US20110220208A1 (en) * 2010-03-15 2011-09-15 Wcm Industries, Inc. Sanitary Hydrant
US9593471B2 (en) 2010-03-15 2017-03-14 Wcm Industries, Inc. Sanitary hydrant
US9228327B2 (en) 2010-03-15 2016-01-05 Wcm Industries, Inc. Sanitary hydrant
US8474476B2 (en) 2010-03-15 2013-07-02 Wcm Industries, Inc. Sanitary hydrant
US20120137428A1 (en) * 2010-12-06 2012-06-07 Ruifu Wang Faucet connecting structure
US8370971B2 (en) * 2010-12-06 2013-02-12 Globe Union Industrial Corp. Faucet connecting structure
US9403304B2 (en) 2011-03-11 2016-08-02 Delta Faucet Company Centerset faucet body and method of making same
US8739826B2 (en) 2011-03-11 2014-06-03 Masco Corporation Of Indiana Centerset faucet body and method of making same
US8931500B2 (en) 2012-02-17 2015-01-13 Masco Corporation Of Indiana Two handle centerset faucet

Also Published As

Publication number Publication date Type
US20080143106A1 (en) 2008-06-19 application
WO2000036327A1 (en) 2000-06-22 application
US20070241562A1 (en) 2007-10-18 application
DE69908179T2 (en) 2003-10-09 grant
US20150076816A1 (en) 2015-03-19 application
US20050184519A1 (en) 2005-08-25 application
DE69908179D1 (en) 2003-06-26 grant
JP2002532666A (en) 2002-10-02 application
US20030111840A1 (en) 2003-06-19 application
US7523966B2 (en) 2009-04-28 grant
CN100368721C (en) 2008-02-13 grant
US8820799B2 (en) 2014-09-02 grant
US6464266B1 (en) 2002-10-15 grant
JP4511738B2 (en) 2010-07-28 grant
US20090243288A1 (en) 2009-10-01 application
US7810850B2 (en) 2010-10-12 grant
EP1141610B1 (en) 2003-05-21 grant
ES2198162T3 (en) 2004-01-16 grant
CN1333865A (en) 2002-01-30 application
EP1141610A1 (en) 2001-10-10 application
US7232159B2 (en) 2007-06-19 grant

Similar Documents

Publication Publication Date Title
US3596933A (en) Joint for plastic pipe
US5484174A (en) Pipe coupling and method of joining materials
US6336764B1 (en) Adjustable water-guiding rod for a cleaning brush
US3976314A (en) Tube coupler
US5511830A (en) Quick connect tube couplings
US6045164A (en) Pipe joint made of resin
US6036237A (en) Coupling for corrugated tubing
US5941576A (en) Connector and coupling means
US3711130A (en) Ferruleless barbed tubing connector
US3977708A (en) Plastic tube fitting and joint
US4437691A (en) Connector for corrugated tubing
US5129684A (en) Sealed bulkhead fitting
US3815940A (en) Joint for smooth end or flareless pipe
US5328215A (en) Pipe joint assembly
US3841667A (en) Non-tapping service line connection fitting
US5513882A (en) Universal non-threaded pipe connector system
US3233921A (en) Swivel joint with locking ring
US7040670B2 (en) Coupling apparatus
US5566708A (en) Valve connector system for plastic pipe
US3822074A (en) Releasable coupling for tubular members and method for assemblying said coupling
US4062572A (en) Transition fittings
US6499771B1 (en) Mechanical pipe coupling with toothed retainer
US5375887A (en) Plumbing hookup kit
US4303263A (en) Instant fitting for reinforced multilayer flexible tubings for fluids
US6019399A (en) Split-ring fluid coupling for corrugated tubing and method of assembly

Legal Events

Date Code Title Description
FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: ACCOR TECHNOLOGY, INC.,WASHINGTON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:O NEILL, JERRY E.;WHITNEY, CHARLIE;SIGNING DATES FROM 20000908 TO 20000911;REEL/FRAME:024202/0458

CC Certificate of correction
FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12